RestKit/RestKit — pull request #422 by pat2man (2011-10-26 19:17:18+00:00)
Title: No real reason why we need to warn on null collections

No real reason why we need to warn on null collections, debug level logging will do just fine. Inspired by the answer here: http://stackoverflow.com/questions/7064233/restkit-warning-found-a-collection-containing-only-nsnull-values